Tag: p- block elements-ii

Questions Related to p- block elements-ii

A group 16 element exists in the monoatomic state in the metallic lattices. It also exists in two crystalline forms. The metal is:

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. Po

  2. S

  3. Se

  4. Te

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Correct Option: A
Explanation:

polonium has two metallic allotropes, the $\alpha $ atom has the simple cubic structure in a single atom basis at STP and $\beta $ atom of it has rhombohedral structure. Po belongs to group 16.

Arrange the following elements in order of their increasing ionisation energies $O, S, Se, Te, Po$ :

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. $Se, Te, S, Po, O$

  2. $O, S, Se, Te, Po$

  3. $Po, Te, Se, S, O$

  4. $Te, O, S, Po, Se$

Show answer
Correct Option: C
Explanation:

Ionisation energy decreases from top to bottom in a group. So increasing order will be
Po < Te < Se < S < O

Which is the following order is INCORRECT?

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. ${ Na } _{ 2 }O<{ SiO } _{ 2 }<{ Cl } _{ 2 }{ O } _{ 7 }$ Acidic character order

  2. ${ PH } _{ 3 }<{ AsH } _{ 3 }<{ SbH } _{ 3 }$ basic character order

  3. ${ PH } _{ 3 }<{ AsH } _{ 3 }={ SbH } _{ 3 }$ acidic character order

  4. $I{ EA } _{ 1 }$>$I{ EA } _{ 2 }$>$I{ EA } _{ 1 }$ Successive electron affinity order.

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Correct Option: B

Group $16$ element are called:

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. Carbon family

  2. Chalcogen family

  3. Halogen family

  4. Nitrogen family

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Correct Option: B
Explanation:
The chalcogens are the chemical elements in the group $16$ of the periodic table. 

This group is also known as the oxygen family. It consists of the elements oxygen, sulfur, selenium, tellurium, and the radioactive element polonium. 

Hence, the correct answer is option $B$.

Which of the following is not a chalcogen?

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. $Se$

  2. $O$

  3. $S$

  4. $Na$

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Correct Option: D
Explanation:

Oxygen family is known as the chalcogen group.


So, $Na$ is not a chalcogen as it belongs to the alkali metal family.

Therefore, correct option is D.

Oxygen is the most abundant metal in the earth's crust.
chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. True

  2. False

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Correct Option: B
Explanation:

Aluminum is the most abundant metal in the earth's crust. Oxygen is not a metal.

Which of the following sets of atomic numbers belongs to chalcogens?

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. 8, 52, 84

  2. 9, 17, 35

  3. 20, 37, 56

  4. 14, 32, 50

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Correct Option: A
Explanation:



$\underset{VI group elements so belongs to chalcogens}{\underbrace{  8:oxygen   52:Tellurium   84:Polonium}} $

Which of the following VIA group element has maximum catenation capacity?

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. S

  2. O

  3. Se

  4. Te

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Correct Option: A
Explanation:

In VI group elements sulphur shows maximum no of valencies:-2,4,6

$\because $ Catenation properties is also dependent in valency 

$\therefore $ Extent of catenation:-$S>Se>O>Te$

The element with highest boiling point in the following is :

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. Oxygen

  2. Sulphur

  3. Tellurium

  4. Polonium

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Correct Option: C
Explanation:

Boiling point is a physical property so depends on van der waal forces of attraction and van der waal forces $\propto$ molecular mass $\propto$ High boiling point
$\therefore $ Boiling point order :- $Te > Se > S > O$

Which of the following is a true Chalcogen:

chemistry p- block elements-ii group 16 elements - general properties group 16 elements - trends in chemical properties group 16 elements

  1. Nitrogen

  2. Oxygen

  3. Polonium

  4. Chlorine

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Correct Option: B
Explanation:


Chalcogen is VI group (Oxygen family)
having elements:-
                 O
                  S
                  Se
                   Te
                    Po